Tangedco harnessed 13,000 million units of wind energy and 2,905 million units of solar energy in 2017-18. Tamil Nadu is the only state to have used so much of green energy last year. The state has saved not less than 5,406 million tonnes of carbon on this count.

The number of people living without access to electricity in 2016 was a billion, or 13 percent of the global population, with the vast majority in rural parts of sub-Saharan Africa and South Asia, new data released by the World Bank, the United Nations and other organisations showed.

"India's power sector will remain dominated by coal over the coming decade despite significant growth in cleaner sources - notably nuclear, non-hydro renewables and natural gas," BMI Research said in a statement.

According to data from the Union power ministry data, Gujarat's installed power generation capacity from non-renewable energy sources stood at 20,765.82 MW in 2015-16 as against 20,611.30 MW in 2014-15, an annual addition of 154.52 MW